Patent SG-11201907757U-A (SG)
Title: Methods of forming forged fixed-cutter earth-boring drill bit bodies
Inventor: OXFORD JAMES
IPC: E21B10/42
Filed: 2018-02-06
Abstract: C326C 1 3120 (f 338C 340C 336C 314C FIG. 4C 336C (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 30 August 2018 (30.08.2018) WIP0 I PCT Iiiimmoimiolollmonolomoninimiliflovom (10) International Publication Number WO 2018/156346 Al 300C 328C (51) International Patent Classification: B21K 5/08 (2006.01) B21J 5/12 (2006.01) B21J 5/02 (2006.01) E21B 10/42 (2006.01) (21) International Application Number: PCT/US2018/017026 (22) International Filing Date: 06 February 2018 (06.02.2018) (25) Filing Language: English (26) Publication Language: English (30) Priority Data: 15/443,413 27 February 2017 (27.02.2017) US (71) Applicant: BAKER HUGHES, A GE COMPANY, LLC [US/US]; 17021 Aldine Westfield, Houston, TX 77073 (US). (72) Inventors: OXFORD, James, Andy; 40810 Roundup Road, Magnolia, TX 77354 (US). BORGE, Richard, Wayne; 1401 Waugh Drive, Unit 2, Houston, TX 77019 (US). DUFFY, Stephen; 5227 Dunleith Ln, Spring, TX 77379 (US). (74) Agent: PULLEY, Stephen, E. et al.; TRASKBRITT, P.O. Box 2550, Salt Lake City, UT 84102 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. (84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (54) Title: METHODS OF FORMING FORGED FIXED-CUTTER EARTH-BORING DRILL BIT BODIES (57) : Methods for forming fixed-cutter earth-boring drill bits include retrieving a forged steel drill bit body from an inventory of substantially identical forged steel drill bit bodies including fixed blades and junk slots between the fixed blades. Cutter pockets are formed in the blades. Nozzle holes are formed in the drill bit body to provide fluid communication from an interior of the forged steel drill bit body to the junk slots. Additional methods include forging first and 324C--, second steel drill bit bodies substantially identical in shape and configuration, forming first cutter pockets in the first steel drill bit body in a first configuration, and forming second cutter pockets in the second steel drill bit body in a second, different configuration. [Continued on next page] W O 20 18/ 15 63 46 Al WO 2018/156346 Al MIDEDIMOMMIDEFIEOMMOINEEMOVOIMIE Declarations under Rule 4.17: as to applicant's entitlement to apply for and be granted a patent (Rule 4.17(11)) as to the applicant's entitlement to claim the priority of the earlier application (Rule 4.17(iii)) Published: — with international search report (Art. 21(3))